The fate of the roanoke colonists is unclear because they
moved to a different area.
disappeared from the area.
refused to discuss their time at roanoke.
agreed to keep their activities a secret.

B. they disappeared from the area.

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The Roanoke colonists are believed to have moved from the area. Because it is still a mystery, some theorize that they were taken by Indians. Some theorize that supplies were long in coming that they were forced to move. There is little evidence either theory.

The world was unaware of what would happen in the future. Noah recieved a warning from God, showing him what was going to happen to the land. For thy, Noah built a large ark. By building the large ark, he would save his whole family and therefore continued to existance of humans. By this, Noah took the  warning from God and becomes righteous in when listening to him.